Truthfully, I'm not sure the question is fair or accurate, as none of the top (older) hitters whose ages are mentioned are playing in advanced rookie ball. I'd also note that the Appy league is advance rookie, so it's not equivalent to the GCL... for any team. As for the older hitters: Rodriguez is org filler and has never really been a prospect (at least not for the Twins). There's no one at a lower level ready to take his place. Every org has those types, and he's having a good month. No big deal. He's old enough that he could potentially move to AAA, but given his age, he's filler, not priority. Park was an old regime international bid. He never spent time in the minors or the US until last year. He never played in the rookie leagues. He's in AAA in large part b/c he failed in MLB last year, and he was jettisoned from the 40 man. That is cleaning house. He's doing fine in AAA, but he's also under contract. It's encouraging to see him hitting well given the org needs, as I wouldn't be surprised if he gets a call yet this summer due to Vargas not taking the job despite getting every opportunity to do so. You can certainly question the old regime's decision to add this talent, but he's a hold over from there without question. I'm not sure where he ends up bodes well or not well for the org. they can go out and sign a DH type if they are convinced Park can't be an option. Those are cheap. Garver is the only real prospect listed that's older. He was drafted at 22 in the 9th round, hardly a sure thing. He's also a catcher, and they tend to take longer (again, this is normal across baseball). His hit tool his really come on the last couple years, so he may be a late bloomer, but he also had a lot more question marks at the beginning of the season than more recently. He hasn't destroyed the minors in every stop though, and that's an important thing to note. He has, however, been very good with the bat the last two seasons. It's his glove though that is slowing his move up. He has a reputation for being a decent defender, but there's a lot more defensively to catching than there is elsewhere. On to the younger guys, Bechtold was drafted this year (5th round, so not a huge prospect) and placed in the advanced rookie league. Again, this is normal for a lot of teams. He's probably the closest guy to the original point. He's doing quite well while basically being 2 months older than league average for the Appy. I wouldn't call a 5th round pick much in terms of a prospect, but he will without question play low A next year and if he hits the MWL well, he'll be the first up to the FSL. Carrier is in the same boat except that he was drafted last year (8th round) . Note that Carrier was nothing special last year in the Appy (.755 OPS) and that he got demoted b/c he did poorly in low A this year. He's not much of a prospect, but he's definitely doing well in low A. As for playing old guys in rookie leagues, again, everyone does it. The average age in those leagues is around 20 for the GCL and 21 for the Appy. Our better prospects (Miranda, Badoo, Kirilloff, Enlow, etc) are all younger than those leagues, but college guys end up going there too, which skews the age, and again, all of baseball does this. If anything, looking at who is doing really well in these leagues, it says a lot for the long term pipeline as we have a bunch of 18 and 19 year old players doing very well in those short season rookie leagues. Those are the real prospects with high ceilings, and right now, we have a lot of them. You won't see many on the top 100 this year, but if they continue to do what they've done at higher levels, they will get noticed. I would also note that the HMs have quite a few prospects there who are doing well while being younger than their leagues. You won't find a ton of huge standouts in that category though on most any team. We have some (Royce Lewis for instance or Kirilloff last year), and those guys tend to be the ones you find in your top 100. But with guys like Badoo, it's just encouraging that they are out performing a league that they are younger than.